How many days a course of cephalosporin infusion depends on the patient’s condition and recovery, most of them are 3-7 days. Cephalosporin is the general name of cephalosporin antimicrobial agents, mainly used for the treatment of bacterial infections. If the condition is mild and the infection is relatively limited, such as pharyngitis and tonsillitis, a course of cephalosporin infusion is usually about 3 days; if the infection is moderate, such as gastroenteritis, appendicitis, pneumonia, etc., a course of cephalosporin infusion is usually about 5 days; if the infection is severe, especially if there is a widespread infection or even bacteremia, the infusion time needs to be extended and a course of infusion is usually about 7 days. The length of treatment also depends on the patient’s response to treatment. Patients sometimes need to be treated with other medications in addition to intravenous cephalosporin during the treatment of the disease. At the same time, pay attention to more rest. If allergic reactions occur during medication, the medication should be stopped in time, and in serious cases, appropriate treatment measures need to be taken.